Home / 112,999.34-169,608.36-83,105.48

Finding the Fourth Proportional to 112,999.34, 169,608.36 and 83,105.48

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Solution

The fourth proportional to 112,999.34, 169,608.36 and 83,105.48 is: 124,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,999.34 : 169,608.36 = 83,105.48 : x
  2. Step 2: Convert to fraction form
    112,999.34/169,608.36 = 83,105.48/x
  3. Step 3: Cross multiply
    112,999.34x = 169,608.36 × 83,105.48
  4. Step 4: Simplify right side
    112,999.34x = 14,095,383,321.77
  5. Step 5: Solve for x
    x = 14,095,383,321.77/112,999.34
  6. Step 6: Final answer
    x = 124,738.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.